INSTALLATION INSTRUCTIONS

INSTALLATION INSTUCTIONS AI HANDLES FEATUING INDUST STANDAD -410A EFIGEANT: efrigerant (-)H1P Standard Efficiency with Aluminum Coil WANING! These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit. ead these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death. ISO 9001:2008 92-20521-64-02 SUPESEDES 92-20521-64-01

TABLE OF CONTENTS 1.0 SAFET INFOMATION............................................ 3 2.0 GENEAL INFOMATION.......................................... 5 2.1 Important Information About Efficiency and Indoor Air Quality............ 5 2.2 eceiving.................................................... 6 2.3 Clearances................................................... 6 2.4 Model Number Explanation...................................... 7 2.4A Available Models.......................................... 8 2.5 Dimensions and Weights........................................ 9 3.0 APPLICATIONS.................................................. 10 3.1 Vertical Upflow and Horizontal Left............................... 10 3.2 Vertical Downflow and Horizontal ight............................ 10 3.3 Installation in an Unconditioned Space............................ 12 3.4 Installation in Mobile/Manufactured Homes......................... 13 4.0 ELECTICAL WIING............................................. 14 4.1 Power Wiring................................................ 14 4.2 Control Wiring............................................... 14 4.2B Thermostat Connections....................................... 15 4.3 Grounding.................................................. 16 4.4 Electrical Wiring.............................................. 16 4.5 Blower Motor Electrical Data.................................... 16 4.5 Blower Motor Electrical Data: (-)H1P........................... 16 4.6 Copper Wire Size............................................. 16 4.7 Electric Heat Electrical Data.................................... 17 4.7A Electric Heat Electrical Data: (-)H1P.......................... 17 4.7B Heater Kit Supplemental Information.......................... 20 5.0 AIFLOW PEFOMANCE........................................ 21 5.1 Airflow Operating Limits (-)H1P.................................. 21 5.2 240V Airflow Performance Data (-)H1P............................ 22 6.0 DUCTWOK..................................................... 26 7.0 EFIGEANT CONNECTIONS.................................... 26 7.1 TEV Sensing Bulb............................................ 26 7.2 Orifice Size.................................................... 7.3 Condensate Drain Tubing...................................... 27 7.4 Duct Flanges................................................ 28 8.0 AI FILTE..................................................... 28 9.0 SEQUENCE OF OPEATION....................................... 29 9.1 Cooling..................................................... 29 9.2 Heating (electric heat only)..................................... 29 9.3 Heating (heat pump).......................................... 29 9.4 Blower Time Delay (heating or cooling)............................ 29 9.5 Defrost (defrost heat control).................................... 29 9.6 Emergency Heat (heating heat pump)............................. 30 9.7 oom Thermostat (anticipator setting)............................. 30 10.0 CALCULATIONS................................................. 30 10.1 Calculating Temperature ise................................... 30 10.2 Calculating BTUH Heating Capacity.............................. 30 10.3 Calculating Airflow........................................ 30 10.4 Calculating Correction Factor................................... 30 11.0 PE-STAT CHECKLIST.......................................... 31 12.0 MAINTENANCE.................................................. 31 12.1 Air Filter.................................................... 31 12.2 Indoor Coil/Drain Pan/Drain Line................................. 32 12.3 Blower Motor & Wheel......................................... 32 12.4 Lubrication.................................................. 32 12.5 Blower Assembly emoval and eplacement....................... 32 12.6 Motor eplacement........................................... 33 12.7 Blower Wheel eplacement..................................... 33 13.0 EPLACEMENT PATS........................................... 33 14.0 ACCESSOIES - KITS - PATS..................................... 34 2

! WANING! WANING! WANING (SEE SECTION 4.0: ELECTICAL WIING) Disconnect all power to unit before installing or servicing. More than one disconnect switch may be required to de-energize the equipment. Hazardous voltage can cause severe personal injury or death. (SEE SECTION 12.5: BLOWE ASSEMBL EMOVAL & EPLACEMENT) If removal of the blower assembly is required, all disconnect switches supplying power to the equipment must be de-energized and locked (if not in sight of unit) so the field power wires can be safely removed from the blower assembly. Failure to do so can cause electrical shock resulting in personal injury or death. Because of possible damage to equipment or personal injury, installation, service, and maintenance should be performed by a trained, qualified service personnel. Consumer service is recommended only for filter cleaning/ replacement. Never operate the unit with the access panels removed. 1.0 SAFET INFOMATION! WANING Duct leaks can create an unbalanced system and draw pollutants such as dirt, dust, fumes and odors into the home causing property damage. Fumes and odors from toxic, volatile or flammable chemicals, as well as automobile exhaust and carbon monoxide (CO), can be drawn into the living space through leaking ducts and unbalanced duct systems causing personal injury or death (see Figure 1). If air-moving equipment or ductwork is located in garages or off-garage storage areas - all joints, seams, and openings in the equipment and duct must be sealed to limit the migration of toxic fumes and odors including carbon monoxide from migrating into the living space. If air-moving equipment or ductwork is located in spaces containing fuel burning appliances such as water heaters or boilers - all joints, seams, and openings in the equipment and duct must also be sealed to prevent depressurization of the space and possible migration of combustion byproducts including carbon monoxide into the living space.! WANING These instructions are intended as an aid to qualified, licensed service personnel for proper installation, adjustment and operation of this unit. ead these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death.! WANING (SEE SECTION 3.2: VETICAL DOWNFLOW) The XHB-17, XHB-21 or XHB-24 combustible floor base is required when some units with electric heat are applied downflow on combustible flooring. Failure to use the base can cause a fire resulting in property damage, personal injury or death. See CLEAANCES for units requiring a combustible floor base. See the accessory section in this manual for combustible floor base XHB.! WANING (SEE SECTION 4.3: GOUNDING) The unit must be permanently grounded. Failure to do so can result in electrical shock causing personal injury or death.! WANING (SEE SECTION 12.0: MAINTENANCE) Units with circuit breaker(s) meet requirements as a service disconnect switch, however, if access is required to the line side (covered) of the circuit breaker, this side of the breaker(s) will be energized with the breaker(s) de-energized. Contact with the line side can cause electrical shock resulting in personal injury or death.! WANING (SEE SECTION 5.0: DUCTWOK) Do not, under any circumstances, connect return ductwork to any other heat producing device such as fireplace insert, stove, etc. Unauthorized use of such devices may result in fire, carbon monoxide poisoning, explosion, personal injury or property damage. Continued on next page 3

! WANING POPOSITION 65: This appliance contains fiberglass insulation. espirable particles of fiberglass are known to the State of California to cause cancer. All manufacturer products meet current Federal OSHA Guidelines for safety. California Proposition 65 warnings are required for certain products, which are not covered by the OSHA standards. California's Proposition 65 requires warnings for products sold in California that contain or produce any of over 600 listed chemicals known to the State of California to cause cancer or birth defects such as fiberglass insulation, lead in brass, and combustion products from natural gas. All new equipment shipped for sale in California will have labels stating that the product contains and/or produces Proposition 65 chemicals. Although we have not changed our processes, having the same label on all our products facilitates manufacturing and shipping. We cannot always know when, or if products will be sold in the California market. ou may receive inquiries from customers about chemicals found in, or produced by, some of our heating and air-conditioning equipment, or found in natural gas used with some of our products. Listed below are those chemicals and substances commonly associated with similar equipment in our industry and other manufacturers. Glass Wool (Fiberglass) Insulation Carbon Monoxide (CO). Formaldehyde Benzene More details are available at the websites for OSHA (Occupational Safety and Health Administration), at www.osha.gov and the State of California s OEHHA (Office of Environmental Health Hazard Assessment), at www.oehha.org. Consumer education is important since the chemicals and substances on the list are found in our daily lives. Most consumers are aware that products present safety and health risks, when improperly used, handled and maintained.! WANING (SEE SECTION 12.6: MOTO EPLACEMENT) To avoid electrical shock which can result in personal injury or death, use only the screws furnished in the motor shell mounting holds. Screws are #8-18 x.25 in. long blunt nose thread forming. Screws longer than 1/4 in. may contact the motor winding.! WANING (SEE SECTION 7.0: AI FILTE) Do not operate the system without filters. A portion of the dust entrained in the air may temporarily lodge in the duct runs and at the supply registers. Any circulated dust particles could be heated and charred by contact with the air handler elements. This residue could soil ceilings, walls, drapes, carpets and other articles in the house. Soot damage may occur with filters in place, when certain types of candles, oil lamps or standing pilots are burned.! WANING The first 36 inches of supply air plenum and ductwork must be constructed of sheet metal as required by NFPA 90B. The supply air plenum or duct must have a solid sheet metal bottom directly under the unit with no openings, registers or flexible air ducts located in it. If flexible supply air ducts are used they may be located only in the vertical walls of a rectangular plenum, a minimum of 6 inches from the solid bottom. Metal plenum or duct may be connected to the combustible floor base, if not, it must be connected to the unit supply duct flanges such that combustible floor or other combustible material is not exposed to the supply air opening from the downflow unit. Exposing combustible (non-metal) material to the supply opening of a downflow unit can cause a fire resulting in property damage, personal injury or death. Exceptions to downflow warnings: Installations on concrete floor slab with supply air plenum and ductwork completely encased in not less than 2 inches of concrete (See NFPA 90B).! CAUTION (SEE SECTION 3.3: HOIZONTAL) Horizontal units must be configured for right hand air supply or left hand air supply. Horizontal drain pan must be located under indoor coil. Failure to use the drain pan can result in property damage.! CAUTION (SEE SECTION 2.1: ECEIVING) In compliance with recognized codes, it is recommended that an auxiliary drain pan be installed under all evaporator coils or units containing evaporator coils that are located in any area of a structure where damage to the building or building contents may occur as a result of an overflow of the coil drain pan or a stoppage in the primary condensate drain piping. See accessories for auxiliary horizontal overflow pan XBM.! NOTICE When used in cooling applications, excessive sweating may occur when unit is installed in an unconditioned space. This can result in property damage.! NOTICE Improper installation, or installation not made in accordance with the Underwriters Laboratory (UL) certification or these instructions, can result in unsatisfactory operation and/or dangerous conditions and are not covered by the unit warranty.! NOTICE In compliance with recognized codes, it is recommended that an auxiliary drain pan be installed under all evaporator coils or units containing evaporator coils that are located in any area of a structure where damage to the building or building contents may occur as a result of an overflow of the coil drain pan or a stoppage in the primary condensate drain piping. See accessories section of these instructions for auxiliary horizontal overflow pan information (model XBM). 4

! NOTICE Use of this air-handler during construction is not recommended. If operation during construction is absolutely required, the following temporary installation requirements must be followed: Installation must comply with all Installation Instructions in this manual including the following items: Properly sized power supply and circuit breaker/fuse Air-handler operating under thermostatic control; eturn air duct sealed to the air-handler; Air filters must be in place; Correct air-flow setting for application emoving the coil and storing it in a clean safe place is highly recommended until construction is completed and the outdoor unit is installed. Clean air-handler, duct work, and components including coil upon completion of the construction process and verify proper air-handler operating conditions according as stated in this instruction manual. NOTE: Electric strip heater elements tend to emit a burning odor for a few days if dust has accumulated during construction. Heater elements are easily damaged. Take great care when cleaning them. pressure compressed air is recommended for cleaning elements. 2.0 GENEAL INFOMATION 2.1 IMPOTANT INFOMATION ABOUT EFFICIENC AND INDOO 2.1 AI QUALIT Central cooling and heating equipment is only as efficient as the duct system that carries the cooled or heated air. To maintain efficiency, comfort and good indoor air quality, FIGUE 1 MIGATION OF DANGEOUS SUBSTANCES, FUMES, AND ODOS INTO LIVING SPACES WANING Carbon Monoxide (CO) Poisoning Can Cause Severe Injury or Death. Carbon Monoxide from the exhaust of motor vehicles and other fuel burning devices can be drawn into the living space by the operation of the central heating and air conditioning system. Exhaust from motor vehicles, generators, garden tractors, mowers, portable heaters, charcoal and gas grills, gasoline powered tools, and outdoor camping equipment contains carbon monoxide, a poisonous gas that can kill you. ou cannot see it, smell it, or taste it. Do NOT operate an automobile or any engine in a garage for more than the few seconds it takes to enter or exit the garage. Do NOT operate any fuel-burning device in an enclosed or partly enclosed space, or near building windows, doors or air intakes. The U.S. Consumer Product Safety Commission (CPSC) and Health Canada recommend the installation of UL or CSA certified Carbon Monoxide Alarm(s) in every home.! WANING Duct leaks can create an unbalanced system and draw pollutants such as dirt, dust, fumes and odors into the home causing property damage. Fumes and odors from toxic, volatile or flammable chemicals, as well as automobile exhaust and carbon monoxide (CO), can be drawn into the living space through leaking ducts and unbalanced duct systems causing personal injury or death (see Figure 1). If air-moving equipment or ductwork is located in garages or off-garage storage areas - all joints, seams, and openings in the equipment and duct must be sealed to limit the migration of toxic fumes and odors including carbon monoxide from migrating into the living space. If air-moving equipment or ductwork is located in spaces containing fuel burning appliances such as water heaters or boilers - all joints, seams, and openings in the equipment and duct must also be sealed to prevent depressurization of the space and possible migration of combustion byproducts including carbon monoxide into the living space.! NOTICE Improper installation, or installation not made in accordance with the Underwriters Laboratory (UL) certification or these instructions, can result in unsatisfactory operation and/or dangerous conditions and are not covered by the unit warranty. 5

it is important to have the proper balance between the air being supplied to each room and the air returning to the cooling and heating equipment. Proper balance and sealing of the duct system improves the efficiency of the heating and air conditioning system and improves the indoor air quality of the home by reducing the amount of airborne pollutants that enter homes from spaces where the ductwork and/or equipment is located. The manufacturer and the U.S. Environmental Protection Agency s Energy Star Program recommend that central duct systems be checked by a qualified contractor for proper balance and sealing.! NOTICE In compliance with recognized codes, it is recommended that an auxiliary drain pan be installed under all evaporator coils or units containing evaporator coils that are located in any area of a structure where damage to the building or building contents may occur as a result of an overflow of the coil drain pan or a stoppage in the primary condensate drain piping. See accessories section of these instructions for auxiliary horizontal overflow pan information (model XBM). 2.2 ECEIVING Immediately upon receipt, all cartons and contents should be inspected for transit damage. Units with damaged cartons should be opened immediately. If damage is found, it should be noted on the delivery papers, and a damage claim filed with the last carrier. After unit has been delivered to job site, remove carton taking care not to damage unit. Check the unit rating plate for unit size, electric heat, coil, voltage, phase, etc. to be sure equipment matches what is required for the job specification. ead the entire instructions before starting the installation. Some building codes require extra cabinet insulation and gasketing when unit is installed in attic applications. If installed in an unconditioned space, apply caulking around the power wires, control wires, refrigerant tubing and condensate line where they enter the cabinet. Seal the power wires on the inside where they exit conduit opening. Caulking is required to pre-vent air leakage into and condensate from forming inside the unit, control box, and on electrical controls. Install the unit in such a way as to allow necessary access to the coil/filter rack and blower/control compartment. Install the unit in a level position to ensure proper condensate drainage. Make sure unit is level in both directions within 1/8. Install the unit in accordance with any local code which may apply and the national codes. Latest editions are available from: National Fire Protection Association, Inc., Batterymarch Park, Quincy, MA 02269. These publications are: ANSI/NFPA No. 70-(Latest Edition) National Electrical Code. NFPA90A Installation of Air Conditioning and Ventilating Systems. NFPA90B Installation of warm air heating and air conditioning systems. The equipment has been evaluated in accordance with the Code of Federal egulations, Chapter XX, Part 3280. 2.3 CLEAANCES All units are designed for 0 inches clearance to combustible material on all cabinet surfaces. Units with electric heat require a one inch clearance to combustible material for the first three feet of supply plenum and ductwork. Some units require a combustible floor base depending on the heating kw. The following table should be used to determine these requirements. Model Cabinet Size 17 21 24 Maximum Model Designation kw 15 18 20 Additionally, if these units are installed down-flow, a combustible floor base is required. See Accessories for Combustible Floor Base XHB-XX. Units with electric heating kw equal to or less than the values listed in the table do not require a combustible floor base. Vertical units require clearance on at least one side of the unit for electrical connections. Horizontal units require clearance on either top or bottom for electrical connections. efrigerant and condensate drain connections are made on the front of the unit. All units require 24 inches minimum access to the front of the unit for service. These units may be installed in either ventilated or nonventilated spaces. 6

2.4 MODEL NUMBE EXPLANATION FIGUE 2 MODEL NUMBE EXPLANATION (-) H 1 P 24 17 S T A N A A *** OPTION CODE (SEE ADS-3803) BLANK = NONE MINO SEIES A = FIST VOLTAGE A = 115/1/60 D = 480/3/60 J = 208/240/1/50 CONTOLS C = COMMUNICATING N = NON-COMMUNICATING MAJO SEIES A = FIST METEING DEVICE T = TEV E = EEV P = PISTON COIL EFFICIENC S = STANDAD M = MEDIUM H = HIGH WIDTH 17 = 17.5 (600-1200 ) 21 = 21 (800-1600 ) 24 = 24.5 (1400-1800 ) NOMINAL CAPACIT 18 = 18,000 BTU/H 42 = 42,000 BTU/H 24 = 24,000 BTU/H 48 = 48,000 BTU/H 30 = 30,000 BTU/H 60 = 60,000 BTU/H 36 = 36,000 BTU/H MOTO TPE P = PSC STAGES OF AI FLOW 1 = SINGLE PODUCT CATEGO H = AI HANDLE BAND 7

2.4A AVAILABLE MODELS AVAILABLE MODELS AT A VOLTAGE (-)H1P1817STANAA (-)H1P2417STANAA (-)H1P3017STANAA (-)H1P3617STANAA (-)H1P4221STANAA (-)H1P4821STANAA AVAILABLE MODELS AT J VOLTAGE (-)H1P1817STANJA (-)H1P2417STANJA (-)H1P3017STANJA (-)H1P3617STANJA (-)H1P3621STANJA (-)H1P4221STANJA (-)H1P4821STANJA (-)H1P4824STANJA (-)H1P6024STANJA AVAILABLE MODELS AT D VOLTAGE (-)H1P3617STANDA (-)H1P4221STANDA (-)H1P4821STANDA (-)H1P4824STANDA (-)H1P6024STANDA Notes: Supply circuit protective devices may be fuses or HAC type circuit breakers. Largest motor load is included in single circuit and multiple circuit 1. If non-standard fuse size is specified, use next size larger fuse size. J Voltage (208/240V) single phase air handler is designed to be used with single or three phase 208/240V power. In the case of connecting 3-phase power to the air handler terminal block, bring only two leads to the terminal block. Cap, insulate and fully secure the third lead. The air handlers are shipped from the factory with the proper indoor coil installed, and cannot be ordered without a coil. The air handlers do not have an internal filter rack. An external filter rack or other means of filtration is required. 8

2.5 DIMENSIONS & WEIGHTS FIGUE 3 DIMENSIONS AND WEIGHTS ELECTICAL CONNECTIONS MA EXIT TOP O EITHE SIDE HIGH VOLTAGE CONNECTION 7/8", 1 3/32", 1 31/32" DIA. KNOCK OUTS. SUPPL AI 10 5 /16 NOTE: 24" CLEAANCE EQUIED IN FONT OF UNIT FO FILTE AND COIL MAINTENANCE. W FLANGES AE POVIDED FO FIELD INSTALLATION LOW VOLTAGE CONNECTION 5/8" AND 7/8" KNOCK OUT (OUTSIDE OF CABINET) A eturn Air Opening Dimensions Model eturn Air eturn Air Opening Cabinet Size Opening Width Depth/Length (Inches) (Inches) 17 15 7 8 19 3 4 21 19 3 8 19 3 4 24 22 7 8 19 3 4 H AUXILIA DAIN CONNECTION 3/4" FEMALE PIPE THEAD (NPT) HOIZONTAL APPLICATION ONL PIMA DAIN CONNECTION 3/4" FEMALE PIPE THEAD (NPT) AUXILIA DAIN CONNECTION 3/4" FEMALE PIPE THEAD (NPT) UPFLOW/DOWNFLOW APPLICATION ONL LIQUID LINE CONNECTION COPPE (SWEAT) VAPO LINE CONNECTION COPPE (SWEAT) 19 1 /2 ETUN AI OPENING 21 11 /16 UPFLOW UNIT SHOWN; UNIT MA BE INSTALLED UPFLOW, DOWNFLOW. HOIZONTAL IGHT, O LEFT AI SUPPL. A-1038-01 DIMENSIONAL DATA MODEL SIZE (-)H1P 1817ST/2417ST 3017ST/3617ST 3621ST 4221ST/4821ST 4824ST 6024ST EFIGEANT CONNECTIONS SWEAT (IN.) [MM] ID LIQUID VAPO 3 /8" 3 /4" [9.53] [19.05] 3 /8" 3 /4" [9.53] [19.05] 3 /8" 7 /8" [9.53] [22.23] 3 /8" 7 /8" [9.53] [22.23] 3 /8" 7 /8" [9.53] [22.23] 3 /8" 7 /8" [9.53] [22.23] UNIT HEIGHT IN. [mm] 42 1 /2" [1080] 42 1 /2" [1080] 42 1 /2" [1080] 50 1 /2" [1283] 50 1 /2" [1283] 55 1 /2" [1410] UNIT WIDTH W IN. [mm] 17 1 /2" [444.5] 17 1 /2" [444.5] 21" [533.4] 21" [533.4] 24 1 /2" [622.3] 24 1 /2" [622.3] SUPPL DUCT A IN. [mm] 16" [406.4] 16" [406.4] 19 1 /2" [495.3] 19 1 /2" [495.3] 23" [584.2] 23" [584.2] AIFLOW COIL (NOM.) [L/s] LO 600 [283] 1000 [472] 1200 [566] 1400 [661] 1600 [755] HI 800 [378] 1200 [566] 1600 [755] 1800 [850] UNIT WEIGHT / SHIPPING WEIGHT (LBS.) [kg] UNIT WITH COIL (MAX. kw.) 81/95 [37/43] 90/104 [41/47] 109/124 [49/56] 130/146 [59/66] 143/161 [65/73] 164/181 [75/82] 9

3.0 APPLICATIONS 3.1 VETICAL UPFLOW AND HOIZONTAL LEFT Vertical Upflow and Horizontal Left is the factory configuration for all models (see Figure 3). If a side return air opening is required, field fabricate a return air plenum with an opening large enough to supply unit and strong enough to support unit weight. If return air is to be ducted, install duct flush with floor. Use fireproof resilient gasket 1/8 to 1/4 in. thick between duct, unit and floor. Set unit on floor over opening. FIGUE 4 DIMENSIONS FO FONT CONNECT COIL 5 15 /16 4 1 /8 3 1 /16 1 3 /16 1 1 /8 1 1 /16 1 3 /8 2 13 /16 5 1 /4 5 3 /8 3.2 VETICAL DOWNFLOW AND HOIZONTAL IGHT Conversion to Vertical Downflow and Horizontal ight: A vertical upflow unit may be converted to vertical downflow. emove the door and indoor coil and reinstall 180 from original position (see Figure 6). (See kit model number on page 35). IMPOTANT: To comply with certification agencies and the National Electric Code for horizontal right application, the circuit breaker(s) on field-installed electric heater kits must be re-installed per procedure below so that the breaker switch on position and marking is up and, off position and marking is down. - To turn breaker(s): otate one breaker pair (circuit) at a time starting with the one on the right. Loosen both lugs on the load side of the breaker. Wires are bundles with wire ties, one bundle going to the right lug and one bundle going to the left lug. - Using a screwdriver or pencil, lift white plastic tab with hole away from breaker until breaker releases from mounting opening (see Figure 5). - With breaker held in hand, rotate breaker so that on position is up, off position is down with unit in planned vertical mounting position. Insert right wire bundle into top right breaker lug, ensuring all strands of all wires are inserted fully into lug, and no wire insulation is in lug. - Tighten lug as tight as possible while holding circuit breaker. Check wires and make sure each wire is secure and none are loose. epeat for left wire bundle in left top circuit breaker lug. - eplace breaker by inserting breaker mounting tab opposite white pull tab in opening, hook mounting tab over edge in opening. 10

FIGUE 5 OTATING CICUIT BEAKE - With screwdriver or pencil, pull white tab with hole away from breaker while setting that side of breaker into opening. When breaker is in place, release tab, locking circuit breaker into location in opening. - epeat above operation for remaining breaker(s) (if more than one is provided). - eplace single point wiring jumper bar, if it is used, on line side of breaker and tighten securely. - Double check wires and lugs to make sure all are secure and tight. Check to make sure unit wiring to circuit breaker load lugs match that shown on the unit wiring diagram. XHB combustible floor base is used for all unit sizes. Unit must be centered on combustible base in the width dimension (14 3 /8 ). (See Section 14.0 for more information on the combustible floor base.) DIP LOOP: When installing the unit in down-flow or horizontal-right positions, make sure that the wires coming from the motor form a proper drip loop. This allows water to cascade off the lowest point of the wiring before it enters the motor head. This may require cutting the wire tie and installing a new wire tie to form this loop.! WANING The XHB-17, XHB-21 or XHB-24 combustible floor base is required when some units with electric heat are applied downflow on combustible flooring. Failure to use the base can cause a fire resulting in property damage, personal injury or death. See CLEAANCES for units requiring a combustible floor base. See the accessory section in this manual for combustible floor base XHB. otate unit into the downflow position, with the coil compartment on top and the blower compartment on bottom. The set of coil rails must be moved for vertical down-flow and horizontal right application. emove the coil rail form the factory configuration (6 screws in all). Fastener clearance holes will need to be drilled in the cabinet sides (proper hole locations are marked with dimples for this purpose). Note that the shorter (no notch) coil rail must be mounted on the left-hand side to provide clearance for the drain pan condensate connection boss. einstall the indoor coil 180 from original position. Ensure the retaining channel is fully engaged with the coil rail. (See Figure 6, Detail A.) Secondary drain pan kits XBM- are required when the unit is configured for the horizontal right position over a finished ceiling and/or living space. (See Section 14.0: Accessories - Kits - Parts.) IMPOTANT: Units cannot be installed horizontally laying on or suspended from the back of the unit. 11

FIGUE 6 VETICAL DOWNFLOW & HOIZONTAL IGHT APPLICATIONS DETAIL A ENSUE THE ETAINING CHANNEL IS FULL ENGAGED WITH THE COIL AIL. AILS AILS ST-A1213-02 FIGUE 7 INDOO COIL AND DAIN PAN SET-UP STAPS HOIZONTAL ADAPTE KIT TOP AI STOP VAPO LINE CONNECTION AUXILIA HOIZONTAL DAIN CONNECTION PIMA DAIN CONNECTION AUXILIA UPFLOW/DOWNFLOW DAIN CONNECTION LIQUID LINE CONNECTION VETICAL DAIN PAN ST-A1213-01! CAUTION Horizontal units must be configured for right hand air supply or left hand air supply. Horizontal drain pan must be located under indoor coil. Failure to use the drain pan can result in property damage. 3.3 INSTALLATION IN AN UNCONDITIONED SPACE The exterior cabinet of an air handler has a greater risk of sweating when installed in an unconditioned space than when it is installed in the conditioned space. This is primarily due to the temperature of the conditioned air moving through the air handler and the air circulating around the unit where it is installed. For this reason, we recommend the following for all air handler applications, but special attention should be paid to those installed in unconditioned spaces: 12

Duct sizing and airflow are critical and based on the equipment selected Supply and return duct attachment: If other than the factory flanges are used, the attachment of ducting must be insulated and tight to prevent sweating. No perimeter supply flanges are provided. If a full perimeter supply duct is used, it is the responsibility of the installer to provide duct flanges as needed, to secure and seal the supply duct to prevent air leakage and the sweating that will result. All wire penetrations should be sealed. Take care not to damage, remove or compress insulation in those cases. In some cases, the entire air handler can be wrapped with insulation. This can be done as long as the unit is completely enclosed in insulation, sealed and service access is provided to prevent accumulation of moisture inside the insulation. As required, use a secondary pan that will protect the structure from excessive sweating or a restricted coil drain line. If a heater kit is installed, be sure the breaker or disconnect cover is sealed tightly to the door panel. 3.4 INSTALLATION IN MOBILE/MANUFACTUED HOMES 1. Air handler must be secured to the structure using L brackets or pipe strap. 2. Allow a minimum of 24 inches (610 mm) front clearance required to access doors. 3. ecommended method for securing air handler: A. If air handler is against the wall, secure top of air handler to wall stud using two 16ga thick angle brackets one on each side. Attach brackets with No. 10 self-tapping 1 2 long screws to air handler and use 5 16 lag screws 1 1 2 long to wall stud. Secure bottom of unit with two 16ga L brackets with No. 10 self-tapping 1 2 long screws to air handler and use 5 16 lag screws 1 1 2 long to floor. B. If air handler is away from wall attach pipe strap to top of air handler using No. 10 1 2 long self-tapping screws on both sides. Angle strap down and away from back of air handler, remove all slack, and fasten to wall stud of structure using 5 16 lag screws 1 1 2 long. Secure bottom of unit with two 16ga L brackets with No. 10 self-tapping screws to air handler and use 5 16 lag screws 1 1 2 long to floor. FIGUE 8 ST-A-1193-01 13

4.0 ELECTICAL WIING Field wiring must comply with the National Electric Code (C.E.C. in Canada) and any applicable local ordinance.! WANING Disconnect all power to unit before installing or servicing. More than one disconnect switch may be required to de-energize the equipment. Hazardous voltage can cause severe personal injury or death. 4.1 POWE WIING It is important that proper electrical power is available for connection to the unit model being installed. See the unit nameplate, wiring diagram and electrical data in the installation instructions. If required, install a branch circuit disconnect of adequate size, located within sight of, and readily accessible to the unit. IMPOTANT: After the Electric Heater is installed, units may be equipped with one, two, or three 30/60 amp. circuit breakers. These breaker(s) protect the internal wiring in the event of a short circuit and serve as a disconnect. Circuit breakers installed within the unit do not provide over-current protection of the supply wiring and therefore may be sized larger than the branch circuit protection. Supply circuit power wiring must be 75 C minimum copper conductors only. See Electrical Data in this section for ampacity, wire size and circuit protector requirement. Supply circuit protective devices may be either fuses or HAC type circuit breakers. Power wiring may be connected to either the right, left side or top. Three 7 /8, 1 3 /32, 1 31 /32 dia. concentric knockouts are provided for connection of power wiring to unit. Power wiring is connected to the power terminal block in unit control compartment. 4.2 CONTOL WIING IMPOTANT: Class 2 low voltage control wire should not be run in conduit with power wiring and must be separated from power wiring, unless class 1 wire of proper voltage rating is used. voltage control wiring should be 18 Awg. color-coded. For lengths longer than 100 ft., 16 Awg. wire should be used. voltage control connections are made to low voltage pigtails extending from top of air handler (upflow position - see Figure 3). Connections for control wiring are made with wire nuts. Control wiring knockouts (5/8 and 7/8) are also provided on the right and left side of the unit for side connection. See wiring diagrams attached to indoor and outdoor sections to be connected, or control wiring diagram booklet supplied with outdoor heat pump section for wiring connection. Make sure, after installation, separation of control wiring and power wiring has been maintained. FIELD WIE SIZE FO 24 VOLT THEMOSTAT CICUITS Thermostat Load - Amps 3.0 2.5 2.0 SOLID COPPE WIE - AWG. 16 16 18 50 14 14 16 100 12 12 14 150 10 12 12 200 Length of un - Feet (1) 10 10 12 250 (1) Wire length equals twice the run distance. NOTE: Do not use control wiring smaller than No. 18 AWG between thermostat and outdoor unit. 10 10 10 300 14

4.2B THEMOSTAT CONNECTIONS NOTE: These low voltage application diagrams are generic. our indoor/outdoor units may not have all the characteristics shown or may not wire exactly as shown. efer to the diagrams and information sent with your indoor/outdoor sections. FIGUE 9 TPICAL THEMOSTAT: STD COOLING W / ELECTIC HEAT WIE COLO CODE: BK - BLACK G - GEEN P - PUPLE - ELLOW B - BOWN G - GA - ED GL - BLUE O - OANGE W - WHITE FIGUE 10 TPICAL THEMOSTAT: STD COOLING W / ELECTIC HEAT USING A HUMIDISTAT FO DEHUMIDIFICATION Air Handler Humidistat Single-Stage A/C Thermostat G W C W/BL G/BK W/BK B W2 G W1 B ODD C 2 BL G/ /BL WIING INFOMATION Line Voltage -Field Installed - Factory Standard A/C Outdoor Unit C Single-Stage A/C Thermostat W G C Air Handler W/BK G/BK BL /BL B G/ W/BL W1 G B 2 C ODD W2 WIING INFOMATION Line Voltage -Field Installed - Factory Standard A/C Outdoor Unit C FIGUE 11 TPICAL THEMOSTAT: STD COOLING W / ELECTIC HEAT USING A 2-STG DEHUMIDIFING THEMOSTAT FIGUE 12 TPICAL THEMOSTAT: HEAT PUMP W / ELECTIC HEAT Two Stage A/C Thermostat W2 G W D C 2 * Air Handler W/BL G/BK W/BK G/ B W2 G W1 B ODD C 2 BL /BL *When using 13kW or higher, it is recommitted to jump W1 and W2 together for maximum outlet temperature rise. A/C Outdoor Unit C Heat Pump Thermostat E G B C W2 * Air Handler W/BK G/BK BL /BL B G/ W/BL W1 G B 2 C ODD W2 Heat Pump Outdoor Unit D B C *When using 13kW or higher, it is recommitted to jump W1 and W2 together for maximum outlet temperature rise. WIING INFOMATION Line Voltage -Field Installed - Factory Standard WIING INFOMATION Line Voltage -Field Installed - Factory Standard FIGUE 13 TPICAL THEMOSTAT: HEAT PUMP W / ELECTIC HEAT USING A HUMIDISTAT FO DEHUMIDIFICATION FIGUE 14 TPICAL THEMOSTAT: HEAT PUMP W / ELECTIC HEAT USING A 2- STG DEHUMIDIFING THEMOSTAT Heat Pump Thermostat E G B C W2 Humidistat * Air Handler W/BK G/BK BL /BL B G/ W/BL W1 G B 2 C ODD W2 Heat Pump Outdoor Unit D B C *When using 13kW or higher, it is recommitted to jump W1 and W2 together for maximum outlet temperature rise. Heat Pump Thermostat E G B C 2 W2 Air Handler W/BK G/BK BL /BL B G/ W/BL W1 G B 2 C ODD W2 Heat Pump Outdoor Unit D B C *When using 13kW or higher, it is recommitted to jump W1 and W2 together for maximum outlet temperature rise. WIING INFOMATION Line Voltage -Field Installed - Factory Standard WIING INFOMATION Line Voltage -Field Installed - Factory Standard 15

4.3 GOUNDING Grounding may be accomplished by grounding metal conduit when installed in accordance with electrical codes to the unit cabinet. Grounding may also be accomplished by attaching ground wire(s) to ground lug(s) provided in the unit wiring compartment. Ground lug(s) are located close to wire entrance on left side of unit (upflow). Lug(s) may be moved to marked locations near wire entrance on right side of unit (upflow), if alternate location is more convenient. Use of multiple supply circuits require grounding of each circuit to lug(s) provided in unit. 4.4 ELECTICAL WIING POWE WIING Field wiring must comply with the National Electrical Code (C.E.C. in Canada) and any applicable local ordinance. Supply wiring must be 75 C minimum copper conductors only. See electrical data for product Ampacity rating and Circuit Protector requirement. GOUNDING This product must be sufficiently grounded in accordance with National Electrical Code (C.E.C. in Canada) and any applicable local ordinance. A grounding lug is provided. 4.5 ELECTICAL DATA BLOWE MOTO ONL NO ELECTIC HEAT: (-)H1P MODEL VOLTAGE PHASE* HETZ HP SPEEDS CICUIT AMPS. MINIMUM CICUIT AMPACIT MAXIMUM CICUIT POTECTO 1817ST 1/5 1075 2 2.3 3.0 15 2417ST 1/5 1075 2 3.8 5.0 15 3017ST 1/4 1075 2 4.7 6.0 15 115 1 60 3617ST 1/3 1075 2 6.1 8.0 15 4221ST 1/2 1075 2 7.9 10.0 15 4821ST 3/4 1075 2 8.4 11.0 15 1817ST 1/5 1075 2 1.7 3.0 15 2417ST 1/5 1075 2 1.7 3.0 15 3017ST 1/4 1075 2 2.5 4.0 15 208/240 1 & 3 60 3617ST/3621ST 1/3 1075 2 2.5 4.0 15 4221ST 1/2 1075 2 5.2 7.0 15 4821ST/4824ST 3/4 1075 2 5.2 7.0 15 6024ST 208/240 3 60 3/4 1075 2 5.2 7.0 15 3617ST 1/3 1075 2 1.4 2.0 15 4221ST 1/2 1075 2 2.2 3.0 15 480 3 60 4821ST/4824ST 3/4 1075 2 2.2 3.0 15 6024ST 3/4 1075 2 2.2 3.0 15 *Blower motors are all single phase motors. 4.6 COPPE WIE SIZE - AWG. (3% VOLTAGE DOP) S U PP L W I E L E N G TH F E E T 200 [61] 150 [46] 100 [30] 50 [15] 12 12 14 14 15 10 10 12 12 20 8 10 10 10 25 8 8 6 6 6 4 4 3 3 2 2 10 8 8 6 6 6 4 4 3 3 2 10 8 8 8 6 6 4 4 3 3 2 10 8 8 8 6 6 4 4 3 3 2 30 35 40 45 50 60 70 80 90 100 110 SUPPL CICUIT AMPACIT NOTE: WIE BASED ON COPPE CONDUCTOS 75 C MINIMUM ATING. FO MOE THAN 3 CONDUCTOS IN A ACEWA O CABLE, SEE N.E.C. FO DEATING THE AMPACIT OF EACH CONDUCTO. 1 1 1 1 125 0 0 0 0 150 00 00 00 00 175 16

4.7 ELECTICAL DATA WITH ELECTIC HEAT Installation of the UL Listed original equipment manufacturer provided heater kits listed in the following table is recommended for all auxiliary heating requirements. 4.7A ELECTICAL DATA WITH ELECTIC HEAT: (-)H1P AI HANDLE MODEL (-)H1P HEATE MODEL NO. HEATE KW (208/240V➀) PH/HZ (480V) NO. ELEMENTS - KW PE TPE SUPPL CICUIT SINGLE CICUIT MULTIPLE CICUIT CICUIT AMPS. MOTO AMPACIT MINIMUM CICUIT AMPACIT MAXIMUM CICUIT POTECTION XBH-17?03J 2.25/3.0 1/60 1-3.0 SINGLE 10.8/12.5 1.7 16/18 20/20 XBH-1724?03J 2.25/3.0 1/60 1-3.0 SINGLE 10.8/12.5 1.7 16/18 20/20 XBH-1724?05J 3.6/4.8 1/60 1-4.8 SINGLE 17.3/20.0 1.7 24/28 25/30 XBH-1724?07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 1.7 35/40 35/40 1817ST XBH-1724?10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 1.7 46/53 50/60 2417ST XBH-1724A13J 9.4/12.5 1/60 3-4.17 SINGLE 45.1/52.1 1.7 59/68 60/70 XBH-1724A13J 3.1/4.2 1/60 1-4.17 MULTIPLE CKT 1 15.0/17.4 1.7 21/24 25/25 6.3/8.3 1/60 2-4.17 MULTIPLE CKT 2 30.1/34.7 0 38/44 40/45 XBH-1724A07C 5.4/7.2 3/60 3-2.4 SINGLE 15.0/17.3 1.7 21/24 25/25 XBH-1724A10C 7.2/9.6 3/60 3-3.2 SINGLE 20.0/23.1 1.7 28/31 30/35 XBH-1724A13C 9.4/12.5 3/60 3-4.17 SINGLE 26.1/30.1 1.7 35/40 35/40 XBH-17?03J 2.25/3.0 1/60 1-3.0 SINGLE 10.8/12.5 2.5 17/19 20/20 XBH-1724?03J 2.25/3.0 1/60 1-3.0 SINGLE 10.8/12.5 2.5 17/19 20/20 XBH-1724?05J 3.6/4.8 1/60 1-4.8 SINGLE 17.3/20.0 2.5 25/29 25/30 XBH-1724?07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 2.5 36/41 40/45 XBH-1724?10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 2.5 47/54 50/60 XBH-1724A13J 9.4/12.5 1/60 3-4.17 SINGLE 45.1/52.1 2.5 60/69 60/70 XBH-1724A13J 3.1/4.2 1/60 1-4.17 MULTIPLE CKT 1 15.0/17.4 2.5 22/25 25/25 6.3/8.3 1/60 2-4.17 MULTIPLE CKT 2 30.1/34.7 0 38/44 40/45 XBH-1724A15J 10.8/14.4 1/60 3-4.8 SINGLE 51.9/60.0 2.5 68/79 70/80 3017ST 3.6/4.8 1/60 1-4.8 MULTIPLE CKT 1 17.3/20.0 2.5 25/29 25/30 XBH-1724A15J 3617ST 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0 44/50 45/50 XBH-1724A18J 12.8/17.0 1/60 3-5.68 SINGLE 61.6/70.8 2.5 81/92 90/100 XBH-1724A18J 4.3/5.7 1/60 1-5.68 MULTIPLE CKT 1 20.5/23.6 2.5 29/33 30/35 8.5/11.3 1/60 2-5.68 MULTIPLE CKT 2 41.1/47.2 0 52/59 60/60 XBH-1724A07C 5.4/7.2 3/60 3-2.4 SINGLE 15.0/17.3 2.5 22/25 25/25 XBH-1724A10C 7.2/9.6 3/60 3-3.2 SINGLE 20.0/23.1 2.5 29/32 30/35 XBH-1724A13C 9.4/12.5 3/60 3-4.17 SINGLE 26.1/30.1 2.5 36/41 40/45 XBH-1724A15C 10.8/14.4 3/60 3-4.8 SINGLE 30.0/34.6 2.5 41/47 45/50 XBH-1724A18C 12.8/17.0 3/60 3-5.68 SINGLE 35.5/41.0 2.5 48/55 50/60 XBH-17A07D 7.2 3/60 2-3.6 SINGLE 8.7 1.4 13 15 XBH-17A10D 9.6 3/60 3-3.2 SINGLE 11.6 1.4 17 20 XBH-17A15D 14.4 3/60 3-4.8 SINGLE 17.3 1.4 24 25 XBH-17A18D 17 3/60 3-5.68 SINGLE 20.4 1.4 28 30 XBH-1724?05J 3.6/4.8 1/60 1-4.8 SINGLE 17.3/20.0 2.5 25/29 25/30 XBH-1724?07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 2.5 36/41 40/45 XBH-1724?10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 2.5 47/54 50/60 XBH-1724A15J 10.8/14.4 1/60 3-4.8 SINGLE 51.9/60.0 2.5 68/79 70/80 XBH-1724A15J 3.6/4.8 1/60 1-4.8 MULTIPLE CKT 1 17.3/20.0 2.5 25/29 25/30 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0 44/50 45/50 XBH-1724A18J 12.8/17.0 1/60 4-4.26 SINGLE 61.6/70.8 2.5 81/92 90/100 3621ST 6.4/8.5 1/60 2-4.26 MULTIPLE CKT 1 30.8/35.4 2.5 42/48 45/50 XBJ-1724A18J 6.4/8.5 1/60 2-4.26 MULTIPLE CKT 2 30.8/35.4 0 39/45 40/45 XBH-1724A07C 5.4/7.2 3/60 3-2.4 SINGLE 15.0/17.3 2.5 22/25 25/25 XBH-1724A10C 7.2/9.6 3/60 3-3.2 SINGLE 20.0/23.1 2.5 29/32 30/35 XBH-1724A15C 10.8/14.4 3/60 3-4.8 SINGLE 30.0/34.6 2.5 41/47 45/50 XBH-1724A18C 12.8/17.0 3/60 3-5.68 SINGLE 35.5/41.0 2.5 48/55 50/60 XBH-24A07D 7.2 3/60 2-3.6 SINGLE 8.7 1.4 13 15 XBH-24A10D 9.6 3/60 3-3.2 SINGLE 11.6 1.4 17 20 XBH-24A15D 14.4 3/60 3-4.8 SINGLE 17.3 1.4 24 25 XBH-24A18D 17 3/60 3-5.68 SINGLE 20.4 1.4 28 30? Heater Kit Connection Type A=Breaker B=Terminal Block c=pullout Disconnect 17

4.7A ELECTICAL DATA WITH ELECTIC HEAT: (-)H1P - continued AI HANDLE MODEL (-)H1P HEATE MODEL NO. HEATE KW (208/240V➀) PH/HZ (480V) NO. ELEMENTS - KW PE TPE SUPPL CICUIT SINGLE CICUIT MULTIPLE CICUIT XBH-1724?05J 3.6/4.8 1/60 1-4.8 SINGLE 17.3/20.0 5.2 29/32 30/35 XBH-1724?07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 5.2 39/44 40/45 XBH-1724?10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 5.2 50/57 50/60 XBH-1724A15J 10.8/14.4 1/60 3-4.8 SINGLE 51.9/60.0 5.2 72/82 80/90 XBH-1724A15J 3.6/4.8 1/60 1-4.8 MULTIPLE CKT 1 17.3/20.0 5.2 29/32 30/35 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0.0 44/50 45/50 XBH-1724A18J 12.8/17 1/60 4-4.26 SINGLE 61.6/70.8 5.2 84/95 90/100 XBH-1724A18J 6.4/8.5 1/60 2-4.26 MULTIPLE CKT 1 30.8/35.4 5.2 45/51 45/60 6.4/8.5 1/60 2-4.26 MULTIPLE CKT 2 30.8/35.4 0.0 39/45 40/45 XBH-24A20J 14.4/19.2 1/60 4-4.8 SINGLE 69.2/80 5.2 93/107 100/110 XBH-24A20J 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 1 34.6/40.0 5.2 50/57 50/60 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0.0 44/50 45/50 4221ST XBH-24A25J 18.0/24.0 1/60 6-4.0 SINGLE 86.4/99.9 5.2 115/132 125/150 4821ST XBH-24A25J 6.0/8.0 1/60 2-4.0 MULTIPLE CKT 1 28.8/33.3 5.2 43/49 45/50 4824ST (4-ton only) 6.0/8.0 1/6 2-4.0 MULTIPLE CKT 2 28.8/33.3 0.0 36/42 40/45 6.0/8.0 1/60 2-4.0 MULTIPLE CKT 3 28.8/33.3 0.0 36/42 40/45 XBH-1724A07C 5.4/7.2 3/60 3-2.4 SINGLE 15.0/17.3 5.2 26/29 30/30 XBH-1724A10C 7.2/9.6 3/60 3-3.2 SINGLE 20.0/23.1 5.2 32/36 35/40 XBH-1724A15C 10.8/14.4 3/60 3-4.8 SINGLE 30.0/34.6 5.2 44/50 45/50 XBH-1724A18C 12.8/17.0 3/60 3-2.84 SINGLE 35.6/41.0 5.2 51/58 60/60 XBH-24A20C* 14.4/19.2 3/60 3-3.2 SINGLE 40.0/46.2 5.2 57/65 60/70 XBH-24A20C 7.2/9.6 3/60 3-3.2 MULTIPLE CKT 1 20.0/23.1 5.2 32/36 35/40 7.2/9.6 3/60 3-3.2 MULTIPLE CKT 2 20.0/23.1 0.0 25/29 25/30 XBH-24A25C* 18.0/24.0 3/60 6-4.0 SINGLE 50.0/57.8 5.2 69/79 70/80 XBH-24A25C 9.0/12.0 3/60 3-4.0 MULTIPLE CKT 1 25.0/28.9 5.2 38/43 40/45 (4-ton only) 9.0/12.0 3/60 3-4.0 MULTIPLE CKT 2 25.0/28.9 0.0 32/37 35/40 XBH-24A07D 7.2 3/60 2-3.6 SINGLE 8.7 2.2 14 15 XBH-24A10D 9.6 3/60 3-3.2 SINGLE 11.6 2.2 18 20 XBH-24A15D 14.4 3/60 3-4.8 SINGLE 17.3 2.2 25 25 XBH-24A18D 17 3/60 3-5.68 SINGLE 20.4 2.2 29 30 XBH-24A20D 19.2 3/60 6-3.2 SINGLE 23.2 2.2 32 35 XBH-24A25D (4-ton only) 24.0 3/60 6-4.0 SINGLE 28.8 2.2 39 40 XBH-1724?07J 5.4/7.2 1/60 2-3.6 SINGLE 26.0/30.0 5.2 39/44 40/45 XBH-1724?10J 7.2/9.6 1/60 2-4.8 SINGLE 34.6/40.0 5.2 50/57 50/60 XBH-1724A15J 10.8/14.4 1/60 3-4.8 SINGLE 51.9/60.0 5.2 72/82 80/90 XBH-1724A15J 3.6/4.8 1/60 1-4.8 MULTIPLE CKT1 17.3/20.0 5.2 29/32 30/35 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0 44/50 45/50 XBH-1724A18J 12.8/17.0 1/60 4-4.26 SINGLE 61.6/70.8 5.2 84/95 90/100 XBH-1724A18J 6.4/8.5 1/60 2-4.26 MULTIPLE CKT 1 30.8/35.4 5.2 45/51 45/60 6.4/8.5 1/60 2-4.26 MULTIPLE CKT 2 30.8/35.4 0 39/45 40/45 6024ST XBH-24A20J 14.4/19.2 1/60 4-4.8 SINGLE 69.2/80 5.2 93/107 100/110 XBH-24A20J 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 1 34.6/40.0 5.2 50/57 50/60 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0 44/50 45/50 XBH-24A25J 18.0/24.0 1/60 6-4.0 SINGLE 86.4/99.9 5.2 115/132 125/150 6.0/8.0 1/60 2-4.0 MULTIPLE CKT 1 28.8/33.3 5.2 43/49 45/50 XBH-24A25J 6.0/8.0 1/60 2-4.0 MULTIPLE CKT 2 28.8/33.3 0 36/42 40/45 6.0/8.0 1/60 2-4.0 MULTIPLE CKT 3 28.8/33.3 0 36/42 40/45 XBH-24A30J 21.6/28.8 1/60 6-4.8 SINGLE 103.8/120 5.2 137/157 150/175 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 1 34.6/40.0 5.2 50/57 50/60 XBH-24A30J 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 2 34.6/40.0 0 44/50 45/50 7.2/9.6 1/60 2-4.8 MULTIPLE CKT 3 34.6/40.0 0 44/50 45/50? Heater Kit Connection Type A = Breaker B = Terminal Block C = Pullout Disconnect CICUIT AMPS. MOTO AMPACIT MINIMUM CICUIT AMPACIT MAXIMUM CICUIT POTECTION 18

4.7A ELECTICAL DATA WITH ELECTIC HEAT: (-)H1P - continued AI HANDLE MODEL (-)H1P HEATE MODEL NO. HEATE KW (208/240V➀) PH/HZ (480V) NO. ELEMENTS - KW PE TPE SUPPL CICUIT SINGLE CICUIT MULTIPLE CICUIT XBH-1724A07C 5.4/7.2 3/60 3-2.4 SINGLE 15.0/17.3 5.2 26/29 30/30 XBH-1724A10C 7.2/9.6 3/60 3-3.2 SINGLE 20.0/23.1 5.2 32/36 35/40 XBH-1724A15C 10.8/14.4 3/60 3-4.8 SINGLE 30.0/34.6 5.2 44/50 45/50 XBH-1724A18C 12.8/17.0 3/60 3-2.84 SINGLE 35.6/41.0 5.2 51/58 60/60 XBH-24A20C* 14.4/19.2 3/60 3-3.2 SINGLE 40.0/46.2 5.2 57/65 60/70 XBH-24A20C 7.2/9.6 3/60 3-3.2 MULTIPLE CKT 1 20.0/23.1 5.2 32/36 35/40 7.2/9.6 3/60 3-3.2 MULTIPLE CKT 2 20.0/23.1 0 25/29 25/30 XBH-24A25C* 18.0/24.0 3/60 6-4.0 SINGLE 50.0/57.8 5.2 69/79 70/80 6024ST XBH-24A25C 9.0/12.0 3/60 3-4.0 MULTIPLE CKT 1 25.0/28.9 5.2 38/43 40/45 9.0/12.0 3/60 3-4.0 MULTIPLE CKT 2 25.0/28.9 0 32/37 35/40 XBH-24A30C* 21.6/28.8 3/60 6-4.8 SINGLE 60.0/69.4 5.2 82/94 90/100 XBH-24A30C 10.8/14.4 3/60 3-4.8 MULTIPLE CKT 1 30.0/34.7 5.2 44/50 45/50 10.8/14.4 3/60 3-4.8 MULTIPLE CKT 2 30.0/34.7 0 38/44 40/45 XBH-24A07D 7.2 3/60 2-3.6 SINGLE 8.7 2.2 14 15 XBH-24A10D 9.6 3/60 3-3.2 SINGLE 11.6 2.2 18 20 XBH-24A15D 14.4 3/60 3-4.8 SINGLE 17.3 2.2 25 25 XBH-24A18D 17 3/60 3-5.68 SINGLE 20.4 2.2 29 30 XBH-24A20D 19.2 3/60 6-3.2 SINGLE 23.2 2.2 32 35 XBH-24A25D 24.0 3/60 6-4.0 SINGLE 28.8 2.2 39 40 XBH-24A30D* 28.8 3/60 6-4.8 SINGLE 34.6 2.2 46 50? Heater Kit Connection Type A=Breaker B=Terminal Block C=Pullout Disconnect CICUIT AMPS. MOTO AMPACIT MINIMUM CICUIT AMPACIT MAXIMUM CICUIT POTECTION ➀ D Voltage = 480 Volts. *Values only. No single point kit available. NOTES: Electric heater BTUH - (heater watts + motor watts) x 3.414 (see airflow table for motor watts.) Supply circuit protective devices may be fuses or HAC type circuit breakers. If non-standard fuse size is specified, use next size larger standard fuse size. Largest motor load is included in single circuit or circuit 1 of multiple circuits. Heater loads are balanced on 3 phase models with 3 or 6 heaters only. No electrical heating elements are permitted to be used with A Voltage (115V) air handler. J Voltage (208/240V) single phase air handler is designed to be used with single or three phase 208/240V electric heaters. In the case of connecting 3 phase power to air handler terminal block without the heater, bring only two leads to terminal block, cap, insulate and fully secure the third lead. Do not use 480V electrical heaters on 208/240V air handler. If the kit is listed under both single and multiple circuits, the kit is shipped from factory as multiple circuits. For single phase application, Jumper bar kit XBJ-A21 and XBJ-A31 can be used to convert multiple circuits to a single supply circuit. efer to Accessory Section for details. 19

4.7B HEATE KIT SUPPLEMENTAL INFOMATION If a heater kit is listed both Single and Multicircuit, the kit is shipped as a Multicircuit and will require a single point kit (-)HLA-HM4821JA MAK HEATE INSTALLED/ L APPAEIL DE CHAUFFAGE DE MAQUE A INSTALLE AI CONDITIONING DIVISION Only listed kits can be applied Contractor should mark or check the left column for the kit installed These are the required maximum and minimum circuit breaker sizes for overcurrent protection and should not be confused with the size of the breakers installed in the heater kit. Heater Kit Supplemental Information: What allows the manufacturer to use standard Circuit Breakers up to 60 amps inside the air handler, when using an approved Heater Kit? National Electric Code (Section 424-22b) and our UL requirements allow us to subdivide heating element circuits, of less than 48 amps, using breakers of not more than 60 amps and, additionally by, NEC 424-3b, a rating not less than 125 percent of the load and NEC 424-22c, which describes the supplementary overcurrent protection required to be factory-installed within, or on the heater. The breakers in the heater kit are not, and have never been, by NEC, intended to protect power wiring leading to the air handler unit. The breakers in the heating kit are for short circuit protection. All internal unit wiring, where the breakers apply, has been UL approved for short circuit protection. Ampacity, (not breaker size), determines supply circuit wire size. The ampacity listed on the unit rating plate and the Maximum and Minimum circuit breaker size (noted above) or in the units specification sheet or installation instructions provides the information to properly select wire and circuit breaker/protector size. The National Electric Code (NEC) specifies that the supply or branch circuit must be protected at the source. 20